Grygorchuk G. Models and means to increase the efficiency of automated control of technological processes on long quasi-cylindrical rotating objects.

Українська версія

Thesis for the degree of Doctor of Philosophy (PhD)

State registration number

0822U100622

Applicant for

Specialization

  • 151 - Автоматизація та приладобудування. Автоматизація та комп’ютерно-інтегровані технології

20-01-2022

Specialized Academic Board

ДФ 20.052.022

Ivano-Frankivsk National University of Oil and Gas

Essay

The research of real technical condition of technical equipment in sugar industry, namely sugar during; development of automatic management of the dump dryer for sugar drying with providing of regulation of raw ,materials moisture content and its temperature. The thesis deals with the solution of the scientific and practical problem for determining the technical condition of the bane structural elements of the technological equipment applied by the sugar industry, which has a geometric configuration of long rotating objects by automated control over their condition using theoretical and experimental methods. In order to save resources on repair work, the main attention is paid to the usage of methods of mathematical modelling of technological processes that require minimal experimental diagnostic information. The topicality of the thesis is grounded on the general focus of linguopoetological, linguocultural, narratological and linguosemiotic studies on the complex investigation of the literary image of the prosaic text, revealing the means of embodiment in different its levels the ethnocultural and mythological ways of understanding and perception of the world by the concrete ethnos through the prism of literary images, the image of the narrator in particular. The object of the research is the long rotation elements of construction of sugar dryer technical equipment in the complex with automatic management system. The subject are the methods of control by technical condition of the elements of the sugar industry technical equipment construction for providing of reliability and rhythm its development by automatic control system. The purpose of the study. The thesis deals with the solution of the scientific and practical problem for determining the technical condition of the mane structural elements of the technological equipment applied by the sugar industry, which has a geometric configuration of long rotating objects by automated control over their condition using theoretical and experimental methods. In order to save resources on repair work, the main attention is paid to the usage of methods of mathematical modelling of technological processes that require minimal experimental diagnostic information. The novelty - proposed the solution to the problems for continuously deformed state of structural elements of the sugar industry technological equipment on the basis of the Lamé problem for a two-layer pipe, which allows for identification and more accurate monitoring the object parameters in the process of its control by ACS; - built a mathematical model for real structural elements of technological equipment, taking into account their complex configuration according to the data on the movement of the minimum number of points, in particular – the dependence of the variable depending on the argument x of the given function; - developed a mathematical model to assess the economic efficiency of the development and implementation of new methods of automated monitoring and technical diagnostics; - improved methods for assessing aerodynamic effects on technological equipment (drying fans) when used as control objects for fans and dryers of the sugar industry, which, in contrast to the existing ACS, allows, taking into account these influences, to provide a higher level of reliability and rhythm with automated control; - improved methods of formalizing incorrect tasks arising in the process of controlling structural elements in sugar industry equipment, which, in contrast to the existing one, increases the reliability of ASC by minimizing disturbing influences; - further developed the methods for assessing the durability of extended rotating objects used in the sugar industry to guarantee high-quality and quantitative indicators of the sugar industry processes and, as a consequence, to increase the reliability and rhythm of the latter.

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